A period for guy?

Little bit moody today, without any reason. Wondering if there is also a period for guy to become emotional, anxious, or unsecure? ... i dont know, i didnt really do any research on it. But i think i encounter this state after every certain amount of time ... hmmm.. sound fishy huh... LOL. If there is any research to prove that, then we will have the right to ask women to tolerate us during the time as well as we tolerate them during their period. :p